# include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
using namespace std;
const int N=1005;
long long n,m,ans,sf1[N][N],sf[N][N];
char ch[N][N];
int main() {
cin>>n>>m;
for(int i=1; i<=n; i++) {
for (int j=1; j<=m; j++) {
cin>>ch[i][j];
}
}
for (int i=1; i<=n; i++) {
for (int j=m; j>=1; j--) {
sf[i][j]=sf[i][j+1]+(ch[i][j]=='O');
}
}
for (int j=1; j<=m; j++) {
for (int i=n; i>=1; i--) {
sf1[i][j]=sf1[i+1][j]+(ch[i][j]=='I');
}
}
for (int i=1; i<=n; i++) {
for (int j=1; j<=m; j++) {
if (ch[i][j]!='J') continue;
ans+=sf[i][j+1]*sf1[i+1][j];
}
}
cout<<ans<<endl;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1356 KB |
Output is correct |
6 |
Correct |
2 ms |
1228 KB |
Output is correct |
7 |
Correct |
2 ms |
1228 KB |
Output is correct |
8 |
Correct |
2 ms |
1356 KB |
Output is correct |
9 |
Correct |
2 ms |
1228 KB |
Output is correct |
10 |
Correct |
2 ms |
1228 KB |
Output is correct |
11 |
Correct |
2 ms |
1356 KB |
Output is correct |
12 |
Correct |
2 ms |
1228 KB |
Output is correct |
13 |
Correct |
2 ms |
1228 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1356 KB |
Output is correct |
6 |
Correct |
2 ms |
1228 KB |
Output is correct |
7 |
Correct |
2 ms |
1228 KB |
Output is correct |
8 |
Correct |
2 ms |
1356 KB |
Output is correct |
9 |
Correct |
2 ms |
1228 KB |
Output is correct |
10 |
Correct |
2 ms |
1228 KB |
Output is correct |
11 |
Correct |
2 ms |
1356 KB |
Output is correct |
12 |
Correct |
2 ms |
1228 KB |
Output is correct |
13 |
Correct |
2 ms |
1228 KB |
Output is correct |
14 |
Correct |
19 ms |
7896 KB |
Output is correct |
15 |
Correct |
3 ms |
4276 KB |
Output is correct |
16 |
Correct |
13 ms |
4716 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
22 ms |
8908 KB |
Output is correct |
19 |
Correct |
21 ms |
8692 KB |
Output is correct |
20 |
Correct |
22 ms |
8644 KB |
Output is correct |
21 |
Correct |
23 ms |
8908 KB |
Output is correct |
22 |
Correct |
23 ms |
8744 KB |
Output is correct |
23 |
Correct |
23 ms |
8652 KB |
Output is correct |
24 |
Correct |
26 ms |
8880 KB |
Output is correct |
25 |
Correct |
21 ms |
8780 KB |
Output is correct |
26 |
Correct |
22 ms |
8744 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
1 ms |
332 KB |
Output is correct |
5 |
Correct |
2 ms |
1356 KB |
Output is correct |
6 |
Correct |
2 ms |
1228 KB |
Output is correct |
7 |
Correct |
2 ms |
1228 KB |
Output is correct |
8 |
Correct |
2 ms |
1356 KB |
Output is correct |
9 |
Correct |
2 ms |
1228 KB |
Output is correct |
10 |
Correct |
2 ms |
1228 KB |
Output is correct |
11 |
Correct |
2 ms |
1356 KB |
Output is correct |
12 |
Correct |
2 ms |
1228 KB |
Output is correct |
13 |
Correct |
2 ms |
1228 KB |
Output is correct |
14 |
Correct |
19 ms |
7896 KB |
Output is correct |
15 |
Correct |
3 ms |
4276 KB |
Output is correct |
16 |
Correct |
13 ms |
4716 KB |
Output is correct |
17 |
Correct |
1 ms |
460 KB |
Output is correct |
18 |
Correct |
22 ms |
8908 KB |
Output is correct |
19 |
Correct |
21 ms |
8692 KB |
Output is correct |
20 |
Correct |
22 ms |
8644 KB |
Output is correct |
21 |
Correct |
23 ms |
8908 KB |
Output is correct |
22 |
Correct |
23 ms |
8744 KB |
Output is correct |
23 |
Correct |
23 ms |
8652 KB |
Output is correct |
24 |
Correct |
26 ms |
8880 KB |
Output is correct |
25 |
Correct |
21 ms |
8780 KB |
Output is correct |
26 |
Correct |
22 ms |
8744 KB |
Output is correct |
27 |
Runtime error |
558 ms |
39788 KB |
Execution killed with signal 11 |
28 |
Halted |
0 ms |
0 KB |
- |